Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model

 Thorough understanding of React.js and its core principles

 Experience with popular React.js workflows (such as Flux or Redux)

 Familiarity with newer specifications of ECMAScript

 Experience with data structure libraries (e.g., Immutable.js)

 Knowledge of isomorphic React is a plus

 Familiarity with RESTful APIs

 Knowledge of modern authorization mechanisms, such as JSON Web Token

 Familiarity with modern front-end build pipelines and tools

 Experience with common front-end development tools such as Babel, Webpack, NPM, etc.

 Ability to understand business requirements and translate them into technical requirements

 A knack for benchmarking and optimization

 Familiarity with code versioning tools {{such as Git, SVN, and Mercurial}}